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Diffstat (limited to 'fs/btrfs/props.c')
-rw-r--r--fs/btrfs/props.c30
1 files changed, 22 insertions, 8 deletions
diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c
index ca2716917e37..a9e2e66152ee 100644
--- a/fs/btrfs/props.c
+++ b/fs/btrfs/props.c
@@ -332,6 +332,7 @@ static int inherit_props(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info = root->fs_info;
int ret;
int i;
+ bool need_reserve = false;
if (!test_bit(BTRFS_INODE_HAS_PROPS,
&BTRFS_I(parent)->runtime_flags))
@@ -357,11 +358,20 @@ static int inherit_props(struct btrfs_trans_handle *trans,
if (ret)
continue;
- num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
- ret = btrfs_block_rsv_add(root, trans->block_rsv,
- num_bytes, BTRFS_RESERVE_NO_FLUSH);
- if (ret)
- return ret;
+ /*
+ * Currently callers should be reserving 1 item for properties,
+ * since we only have 1 property that we currently support. If
+ * we add more in the future we need to try and reserve more
+ * space for them. But we should also revisit how we do space
+ * reservations if we do add more properties in the future.
+ */
+ if (need_reserve) {
+ num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
+ ret = btrfs_block_rsv_add(root, trans->block_rsv,
+ num_bytes, BTRFS_RESERVE_NO_FLUSH);
+ if (ret)
+ return ret;
+ }
ret = btrfs_setxattr(trans, inode, h->xattr_name, value,
strlen(value), 0);
@@ -375,9 +385,13 @@ static int inherit_props(struct btrfs_trans_handle *trans,
&BTRFS_I(inode)->runtime_flags);
}
- btrfs_block_rsv_release(fs_info, trans->block_rsv, num_bytes);
- if (ret)
- return ret;
+ if (need_reserve) {
+ btrfs_block_rsv_release(fs_info, trans->block_rsv,
+ num_bytes);
+ if (ret)
+ return ret;
+ }
+ need_reserve = true;
}
return 0;